A self-circulating cooling device for marine generator bearings

Abstract

This utility model discloses a self-circulating cooling device for marine generator bearings, comprising a generator body, a cooling device, a cooling device oil outlet pipe, a generator housing, a cooling device motor, a sliding bearing, a sliding bearing oil inlet, a sliding bearing oil outlet, a cooling device oil inlet pipe I, a cooling device oil inlet pipe II, a terminal block, 220V AC power, a contactor and relay, and 380V AC power. When the diesel engine drives the generator, it provides a signal to the contactor and relay. After the contactor and relay close, the cooling device operates, and the oil circuit begins to circulate, ensuring the bearings are cooled continuously during generator operation. This utility model is particularly suitable for cooling the bearings of high-power multi-pole marine generators. The self-circulating cooling device is small in size, low in cost, and provides excellent cooling performance.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a self-circulating cooling device for marine generator bearings. Background Technology

[0002] Sliding bearings are widely used in high-power multi-pole marine generators due to their advantages such as long service life, convenient maintenance, and stable operation. The cooling method of sliding bearings in marine generators generally adopts external thin oil station circulation cooling. Although it has the advantage of cooling a large number of bearings, the construction of thin oil stations and the layout of pipelines are expensive and occupy a lot of space on the ship. To address this problem, this utility model designs a self-circulating cooling device for sliding bearings of marine generators. The device is compact, easy to operate, easy to install, requires little space, and has extremely low cost. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a self-circulating cooling device for marine generator bearings.

[0004] The technical solution of this utility model is as follows: a self-circulating cooling device for marine generator bearings, comprising a generator body, a generator housing, a cooling device, a cooling device motor, a sliding bearing, and a terminal block; the generator body is placed inside the generator housing, the terminal block is built into the generator housing, the cooling device is fixedly installed on the side of the generator body, the cooling device motor is provided at the top of the generator body, and the sliding bearing is provided at the side end of the generator body.

[0005] Furthermore, the cooling device is equipped with a cooling device oil inlet pipe I, a cooling device oil inlet pipe II, and a cooling device oil outlet pipe, and the sliding bearing is equipped with a sliding bearing oil inlet hole and a sliding bearing oil outlet hole; one end of the cooling device oil outlet pipe is connected to the sliding bearing oil inlet hole and the other end is connected to the cooling device, one end of the cooling device oil inlet pipe I is connected to the sliding bearing oil outlet hole and the other end is connected to the cooling device motor, and one end of the cooling device oil inlet pipe II is connected to the cooling device motor and the other end is connected to the cooling device.

[0006] Furthermore, the 220V AC power on the terminal block is the operating power for the contactors and relays, while the 380V AC power on the terminal block is the operating power for the cooling device motor.

[0007] Furthermore, when the diesel engine drives the generator body, the contactor and relay close, and 380V AC power supplies power to the cooling device motor, and the cooling device starts to work. When the diesel engine stops, the contactor and relay open, and the cooling device stops working.

[0008] Furthermore, when the cooling device is working, hot oil enters the cooling device for cooling through the oil outlet of the sliding bearing, the oil inlet pipe I of the cooling device, and the oil inlet pipe II of the cooling device. The cold oil then flows into the sliding bearing through the oil outlet pipe of the cooling device and the oil inlet of the sliding bearing.

[0009] The technical advantages of this invention are: when the generator is running or stopped, the contactor and relay can automatically close or open, and the self-circulating cooling device can automatically start and stop according to the actual operating conditions of the generator. The self-circulating cooling device is small in size, low in cost, and has a good cooling effect, making it particularly suitable for cooling the bearings of high-power multi-pole marine generators. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a wiring diagram of the present invention.

[0012] In the diagram: 1. Generator body, 2. Cooling device, 3. Cooling device oil outlet pipe, 4. Generator housing, 5. Cooling device motor, 6. Sliding bearing, 7. Sliding bearing oil inlet, 8. Sliding bearing oil outlet, 9. Cooling device oil inlet pipe I, 10. Cooling device oil inlet pipe II, 11. Terminal block, 12. 220V AC power, 13. Contactor and relay, 14. 380V AC power. Detailed Implementation

[0013] like Figure 1 , Figure 2 As shown, this utility model is implemented as follows. A self-circulating cooling device for marine generator bearings includes a generator body 1, a cooling device 2, a cooling device oil outlet pipe 3, a generator housing 4, a cooling device motor 5, a sliding bearing 6, a sliding bearing oil inlet hole 7, a sliding bearing oil outlet hole 8, a cooling device oil inlet pipe I (9), a cooling device oil inlet pipe II (10), a terminal block 11, a 220V AC power supply 12, a contactor and relay 13, and a 380V AC power supply 14; the cooling device (2) is fixed on the side of the generator body (1), one end of the cooling device oil outlet pipe (3) is connected to the sliding bearing oil inlet hole (7), and the other end is connected to the cooling device (2), one end of the cooling device oil inlet pipe I (9) is connected to the sliding bearing oil outlet hole (8), and the other end is connected to the cooling device motor (5), and one end of the cooling device oil inlet pipe II (10) is connected to the cooling device motor (5), and the other end is connected to the cooling device (2).

[0014] When the diesel engine drives the generator, the contactor and relay (13) close, and the 380V AC power (14) supplies power to the motor (5) of the cooling device. The cooling device (2) starts to work. Hot oil enters the cooling device (2) through the oil outlet (8) of the sliding bearing, the oil inlet pipe I (9) of the cooling device, and the oil inlet pipe II (10) of the cooling device for cooling. The cold oil then flows into the sliding bearing (6) through the oil outlet pipe (3) of the cooling device and the oil inlet (7) of the sliding bearing.

[0015] When the diesel engine stops, the contactor and relay (13) disconnect, and the cooling device (2) stops working. When the diesel engine drives the generator, the contactor and relay close, and the cooling device starts working. When the diesel engine stops, the contactor and relay disconnect, and the cooling device stops working.

[0016] When the diesel engine drives the generator, it provides signals to the contactors and relays. After the contactors and relays close, the cooling device operates, and the oil circuit begins to circulate, ensuring the bearings are cooled during generator operation. This invention is particularly suitable for cooling the bearings of high-power multi-pole marine generators. The bearing self-circulating cooling device is small in size, low in cost, and provides excellent cooling effect.

Claims

1. A self-circulating cooling device for marine generator bearings, comprising a generator body, a generator housing, a cooling device, a cooling device motor, a sliding bearing, and a terminal block; characterized in that: The generator body is placed inside the generator housing, which has a built-in terminal block. A cooling device is fixedly installed on the side of the generator body, and a cooling device motor is located at the top of the generator body. A sliding bearing is located on the side of the generator body.

2. The self-circulating cooling device for marine generator bearings according to claim 1, characterized in that: The cooling device is equipped with an oil inlet pipe I, an oil inlet pipe II, and an oil outlet pipe. The sliding bearing is equipped with an oil inlet hole and an oil outlet hole. One end of the oil outlet pipe is connected to the oil inlet hole of the sliding bearing, and the other end is connected to the cooling device. One end of the oil inlet pipe I is connected to the oil outlet hole of the sliding bearing, and the other end is connected to the motor of the cooling device. One end of the oil inlet pipe II is connected to the motor of the cooling device, and the other end is connected to the cooling device.

3. The self-circulating cooling device for marine generator bearings according to claim 1, characterized in that: The 220V AC power on the terminal block is the operating power for the contactors and relays, while the 380V AC power on the terminal block is the operating power for the cooling device motor.

4. The self-circulating cooling device for marine generator bearings according to claim 1, characterized in that: When the diesel engine drives the generator, the contactor and relay close, and 380V AC power supplies the cooling device motor, so the cooling device starts to work. When the diesel engine stops, the contactor and relay open, and the cooling device stops working.

5. A self-circulating cooling device for marine generator bearings according to claim 1, characterized in that: When the cooling device is working, hot oil enters the cooling device for cooling through the oil outlet of the sliding bearing, the oil inlet pipe I of the cooling device, and the oil inlet pipe II of the cooling device. The cold oil then flows into the sliding bearing through the oil outlet pipe of the cooling device and the oil inlet of the sliding bearing.

Images